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    Re: R1 Single Seat Mini Build!
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    Hey guys, running into an issue with my steering rack. The two Center bolts that go into the rack cannot be tightened, otherwise it causes the rack to lock up. The sliding plate (~1” wide, come with the rack and pinion) on the outside of the rack is pressed against the face of the rack and pinion and stops any linear motion. Is there any way around this so I can tighten the bolts?







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    Re: R1 Single Seat Mini Build!
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    Is your spreader bar actually sliding over the top of the 2 bolt points (stand off spacers) you have shown and rubbing on the top plate? If so you need to reduce the size of the holes on your spreader so it only makes contact with the face of those 2 stand-off spacers.... if I am looking at the picture correctly.
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    Re: R1 Single Seat Mini Build!
    Keeper of the Asylum K-fab's Avatar
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    Bolts holding the spreader bar are too long - you're going through the rack and bottoming out against the back side of the body where the rack slides.
    Throw a couple washers under the bolt heads to get some clearance and see if that fixes the issue. If it does, go get 1/4" shorter bolts.
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    Re: R1 Single Seat Mini Build!
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    I actually have thought about both these issues mentioned. When the spreader bar is installed the bolts are actually too short because they only spin about twice before they tighten against the spreader bar, so I don’t think they are going all the way through and stoping movement.

    I took the spreader bar out, added a few spacers (so the bolt do not bottom out inside the rack) and tightened them so they only make contact with the 2 little spacers on the rack plate and it still locks up the rack. I think there is too much pressure on the outside sliding plate on the rack and it just won’t slide.


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    Re: R1 Single Seat Mini Build!
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    Well I figured out my issue with the rack and pinion. The little aluminum plate that is on the rack was screwed into the rack and the screw was too tight. Loosened it off to give more play on the aluminum cover place and t slides nice when the spreader bar is tightened down.

    I’ve been looking into a more permanent fuel tank option. I would like to move the fuel tank (get a new aluminum one built) to a location under the seat to lower the mass of the fuel when the tank is full and move the weight ahead. However, I am wondering if the fuel pump will have enough pumping power to still supply the engine with enough fuel pressure given the fuel send and return lines will be a lot longer (~3 ft long). I’m using the stock fuel pump from the 2006 R1 bike.

    Here’s a diagram of the approximate location of the fuel tank (Blue) and the approximate length of the fuel lines (yellow).



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    Re: R1 Single Seat Mini Build!
    Keeper of the Asylum K-fab's Avatar
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    Fuel line length shouldn't be an issue.
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    Re: R1 Single Seat Mini Build!
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    Quote Originally Posted by K-fab View Post
    Fuel line length shouldn't be an issue.
    Cool thanks Kfab. I was thinking of having two slim ‘saddle tanks’ on each side of the seat that gravity feed into a smaller tank under the seat that has the fuel pump and baffles in it. They will all be connected by a single fuel line to keep the fuel level even between the two saddle tanks and to keep the tank with the fuel pump always full (it will sit lower than the two saddle tanks). Can you see any issues with a set up like this? Other than complexity.


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    Re: R1 Single Seat Mini Build!
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    If you put a vent on the bottom tank, make sure the top of the vent line is higher than the two upper tanks haha
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    Re: R1 Single Seat Mini Build!
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    Haha yes for sure, thank you for the tip. I imagine that is a common overlooked issue lol


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